@article{ref1,
title="Colour vision at work",
journal="Occupational health: a journal for occupational health nurses",
year="1981",
author="Ross, D.",
volume="33",
number="11",
pages="573-578",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0029-7917",
doi="",
url="http://dx.doi.org/"
}